Hanging fire wall and method of constructing same



J. J. O'BRIEN May 22, 1956 HANGING FIRE WALL AND METHOD OF CONSTRUCTINGSAME Filed July 8. 1949 I5 Sheets-Sheet l IN VEN TOR.

Joly/v J. 'DR/E/v BY a. A TTOQNEX J. J. o'BRn-:N 2,746,257

HANGING FIRE WALL AND METHOD oF CONSTRUCTING SAME May 22, 1956 3Sheets-Sheet 2 Filed July 8, 1949 JNVENTOR JoH/v J. GBR/:N

A T TOR/Vix J. J. O'BRIEN May 22, 1956 HANGING FIRE WALL AND METHOD OFCONSTRUCTING SAME Filed July 8, 1949 3 Sheets-Sheet 3 FIG.

FIG. I4.

J. OBR: En'

JOHN

ATTORNEY United States Patent O HANGING FIRE WALL AND METHOD OFCONSTRUCTING SAME John J. OBrien, New York, N. Y.

Application July 8, 1949, Serial No. 103,565

29 Claims. (Cl. 61-48) This invention relates to piers and to means andmethods for isolation and control of res which may occur thereunder andmore particularly to concrete tire wall, or bulkheads under piers,though in some of the claims the invention is not limited to piers orconcrete walls.

One object of the invention is to provide an improved wall of this kindwhich may be installed without submarine equipment and which may beconstructed in situ of concrete under the pier.

Another object of the invention is to provide an etiicient fire wallhanging under the pier and extending from the pier deck to below thewater line.

Other objects are to provide a lire wall of this kind which will berugged and durable, and will withstand shocks if the pier is struck byheavy boats.

Other objects of the invention are to increase the eX ibility of theiire wall while maintaining its functions and above advantages, and tothis end to provide a tire wall of independently swinging sectionseXibly connected in a manner to prevent the passage of re through theconnections.

Another object of the invention is to provide a tirestopping barrierwhere the tire wall joins the pier deck.

Other objects are to provide improved methods of constructing the iirewall to elect the above objects.

Additional objects of the invention are to eiect simplicity and eiciencyin such walls and methods and to provide an extremely simple wall ofthis kind which is rugged and durable in use, and economical toconstruct and maintain.

Still other objects of the invention will appear as the descriptionproceeds; and while herein details of the invention are described in thespecication and some of the claims, the invention as described in thebroader claims is not limited to these, and many and Various changes maybe made without departing from the scope of the broader claims.

The inventive features for the accomplishment of these and other objectsare shown herein in connection with an improved tire wall or tireproofbulkhead and method of making the same, the wall being made as a singlewall or as a number of wall sections flexibly joined and hanging acrossthe space under the pier and extending below the water.

In constructing the wall section or wall under a pier, beams are placedon the pier stringers. The method includes suspending from said beamsdownwardly extending rods supporting a lower beam above the water line,and securing along the lower beam spaced parallel upright forms betweenwhich bolts, rods or cables are passed from said upper beam and securedto the lower beam; and concrete or other plastic material is pouredbetween the forms on the lower beam to form a lower part of a lire wallsection.

Then all parts of the lower beam and wall section are simultaneouslylowered. The process of building up the form and the pouring arerepeated until the wall section is below the water line and has beenbuilt up substantially Frice to the stringers, after which the rods,bolts or cables are secured to the upper beam after which the forms areremoved to allow the rods, bolts or cables to support the wall.

In the accompanying drawing showing, by way of example, several of manypossible embodiments of the invention,

Fig. l is a fragmental vertical sectional view, partly in elevation,showing one form of a complete wall section and a wall section in courseof erection, the section being taken through the pier deck substantiallyon the line 1-*1 of Fig. 3, looking in the direction of the arrows ofsaid line;

Fig. 2 is a fragmental horizontal sectional view taken substantially onthe line 2 2 of Fig. 1, and showing one form of wall anchoring means,diagonal braces l15 being removed for clearness;

Fig. 3 is a fragmental side elevation of a portion of a pier, a Wallsection being shown in end elevation;

Fig. 4 is a fragmental longitudinal vertical sectional view, partly inelevation, drawn on a larger scale, showing the upper part of a iirewall with part between the pier stringers;

Fig. 5 is a section taken substantially on the line 5-5 of Fig. 4,looking in the direction of the arrows of said line;

Fig. 6 is a fragmental transverse vertical sectional view, takensubstantially on the line 6-6 of Fig. 1', showing the lower part of awall section duringconstruction;

Fig. 7 is a plan of a yoke piece used during construction;

Figs. 8 to 10 are fragmental horizontal sectional views showing threeforms of exible joint between the sections;

Fig. 11 is a side elevation showing another form of iire wall;

Fig. 12 is an edge or end elevation of the wall of Fig. 11.

Figs. 13, 14 and 15 are respectively fragmental side elevation,horizontal section and end elevation showing another form of anchoringmeans; and

Fig. 16 is a vertical sectional view showing means for suspending the rewall from a concrete pier deck.

In Figs. 1 to 3 are shown a complete iire wall section 10 and anincomplete section 11 beneath a pier 12 carried on transverse bents orrows of piles 13 having cross braces 14 and diagonal swing braces 15secured thereto. Caps 16 on the respective bents or rows of pilessupport spaced stringers 17 disposed across and connecting the caps oneto another. The pier deck comprises transverse deck planks 19 across thestringers and pier and diagonal oor or deck planks 20 or a concretefloor across the deck planks; or the entire deck oor may be of concrete,but herein a plank deck is described.

To erect the re wall under a plank deck, two deck planks and the floorplanks above them are removed to leave a transverse opening 21 above thestringers near a bent or row of piles with proper clearance from thepiles. Longitudinally slidable upwardly open upper channel beams 22 areplaced in alinement with each other on the stringers in said openingsubstantially across the pier. These upper beams have short longitudinalslots 23 (Figs. 4 and 5) in the web at intervals and have flanges 24nearly as high as the top of the deck lower planks.

Across the channel beam at intervals are disposed, during construction,tlat upper yoke pieces 25 having openings at each side of the beam inwhich are placed long threaded rods 27 on which are placed nuts 28engaging the yoke piece, the rods initially extending much above theyoke piece and initially extending down to near'the water level at hightide, and are provided with lower end eyes 29 (Fig. 6) which supportlower at yoke pieces 30 each having at the ends downwardly outwardlyturned hooks31 engaging in said eyes. Across said lower yyoke pieces 30are placed a temporary wooden -vbeam 32 or othersuitable beam to providea temporary Afoundation for the tire wall, on which beam are nailed anupwardly open lower channel beam 35 havingY cross vpins 36passingthrough the flanges at intervalscorre- .sponding to'said'slots 23of the upper beam. Bolts or cables 37 are initially passed through saidslots'23 and securedat their lower ends to said cross pins 36. If cablesare used they are drawn taut.VV Bolts will remain uptight because oftheir stiffness.

Between the outer ends of the forms where the free end of the ltire wallis to be, there is secured an inwardly vertically dove-tailednprightend'piece 38 (Fig. y2) of oakor. .otherV material to form a protectiveVend edge or fender Vfor the wall; and between the inner ends of thefo'rmwhere the inner end of a wall section is to be, there is secured anupright end piece having a deep inner verltical tongue. to forma deepgroove 39 (Fig. 8) in the concrete .to cooperate with aV similar groove39 of an adjacent wall section 11 to form a space to receive a tireproofverticalr spline 40 of suitable 'reproof material. Wires 41 `(Fig. 6)are passed through the forms to tie thevforms ltogether to prevent theirspreading apart when the concrete is poured.

Escutcheon plates 42 having horizontally elongated openings 43therethrough are secured at opposite locatiops on the inner face of theforms adjacent to a pile to receive and hold a core 43 of horizontallyelongated cross-section placed in the openings of the plates acrossthegrspace between the forms to provide holes 43a through the Wall for apurpose to be explained.

Y 'Ifhe concrete or other plastic material is poured between the formswhile the bolts 37 are upright or said cables are taut to'form a lowerpart of a re wall section after which the nuts 28 supporting the sectionare simultaneously turned to lower the rods, lower beam and wall sectionto a new lower position for building up the forms and end pieces andrepeating the pouring and process until the wallsection is below thewater line at low tide and Yhas been built up substantially to thebottom of the stringers or the upper channel beams 22 as will be eX-plained.

VThe Vwall section may be built up solidly to the Yupper channel beam22; or when the wall section is builtup to the bottom of the stringers17 there may bevplaced on the wall reproof horizontal parting plates 45(Fig. 4) across and along the top of the wall section just at or underthe lower plane of the stringers. Then the forms and Yconcrete wallsection Vare built up between the stringerssubstantially to the upperbeam 22, a short tubular'forrn V46 having been placed on the platearound the b oltsfor cables: 37 between the stringers, whereby areformed Yconcrete lugs 47 having vertical openings therethrough, the'lugs occupying the space between the stringers substantially to saidupper beam 22.

Theobject of the parting plate 45 is to provide a smooth break betweenthe lug 47 and the wall section if the pier should be struck and heavilyjarred by a boat. It the parting plate be omitted a rough break mightresult, but would do no real harm. f

An eye bolt 49 having upper and lower eyes 50 and 51 has its upper eye50 placed on a pin 52 passing through each pair of alined openings inthe anges of the upper beam?" The upper end of the bolt or the cable 37is secured'to the lower eye 51 of the eye bolts; after the i Wall is setthe forms, cores, temporary beam, yokes 30 and long bolts 27 are removedto allow the bolts or cables 37 to support the wall section.

The operation is repeated to form the other end section of the wall, andone or more intermediate sections having slightly spaced vertical endedges having adjacent cooperating deep grooves 39, into which lgroovesare placed a spline plank 40 of reproof materialto form a ilexibleyieldable reproof joint. Y.

An eye bolt 54 (Fig. 2) is loosely passed through the escutcheons 42 andopenings 43 and 43a and has an eye 55 adjacent to a pile and a head ornut 56 at the opposite end. A pair of straps 57 at' oppositeV sides oftheY pile are secured by bolts 58, 59 passing through the ends 'of thestraps, one of the bolts 59 passing through the eye for looselyanchoring the wall to the pile.

The object of having the channel beam 22 slidable, and of having thebolt'loose in the escutcheon openings 43, is to allow some relativemovement between the pier and the beam 22 and between the re wall andthe piles and pier when the pier is struck and jarred laterally, thus toavoid excessive shock tothe cables or bolts 37 and the tire wallsection.

If desired the wall section ldlc may be made thinner between the joints,as shown in Fig. 10, thusV requiring less concrete between the joints.

Instead of the joints being made as in Figs. 8 and l0 the concrete wall10b 'may be cast in undercut grooves 60 (Fig. 9) of loosely tongued andgrooved pieces 61, 6 of aluminum or other metal or material. i

Instead of erecting the walls as above described, the wall may bep'ret'abricated and transported to the pier and attached to the upperbeam 22 by means of the eye bolts 49 and pins 52 as shown.

The form of the invention of Figs. 1l to l5 comprises a tire resistingwall or wall section 10a of concrete suspended from upwardly open alinedshallow upperv channel beams 22a secured across adjacent stringers 17having anges less high than theV adjacent planks 19 and as-wide as thespace between adjacent planks 19.` Short planks 19a are 'alined betweenadjacent beams; Pending bolts or rodsn37a passing through bolt holes inthe web of the channel beams and having nuts 63 on the upper endengaging the web for holding the bolts, support .the permanentlyinstalled lower beam 35a as will be explained. A 'concrete filling 64between and ush with said adjacent planks 19 covers the beams and nuts.

Cross pins 36a passing through eyes 37b at the lower ends of the rods37a support U-shaped straps 65 having holes in the upper ends of theirarms received on said pins 36a. The lowerbeam 35a received in saidstraps', Y

supports the concrete'or other cast plastic lire wall 10a resting onsaid lower beam and extending upwardly to the stringers 17, upper beams22a and short planks 19a.

An 'upright end piece 38a of oak or other material to form a protectiveend edgeL or fender for the wall land having countersunk holestherethrough is held in place by barbed studs 66 in said holes and castin the wall and having heads 67 in countersinks 68 in said piece.

Means for preventing'lateral swinging of the walls but allowing endwisemovement relative to the adjacent pile is shown in Figs. 13 to 15 andcomprises a horizontal channel iron 70 having a vertical web 71 disposedagainst adjacent piles 13 of the same pylon, and having a horizontalslot 72 in its mid-part. U-straps 73 disposed around adjacent piles 13are bolted to the web by bolts 74. A non-traveling slide plate 75 weldedfast on the anges ofy said channel iron is provided with a horizontalslot 7 6' registering with the slot 72 of the channel iron, said slotsreceiving a threaded bolt 77 transfersely slidably disposedin said slotsand having one end welded or riveted to an anchor plate 78 cast mid-waybetween the wide faces of the wall. i

Horizontallyvmovable.slide plates 79, 80 having centralY openingsreceived on said bolt `77 Yare* welded to the boltv arance? and-slidable on said non-traveling plate and the channel iron to allowhorizontal relative movement between the piles and the wall parallel tosaid faces and parallel to the wall as when the pier is jarredlaterally. A reinforcement of expanded metal 81 is cast in the mainplane of the wall to strengthen the wall.

The walls or wall sections of Figs. ll to 15 may be constructed by usingthe rods 27 substantially as those of Figs. l to 3; but the temporarybeam 32 need not be employed, as the yoke piece 3i) may be placeddirectly beneath the lower beam 35a, and the forms 32a (as in Fig. 6)may be rested directly on the beamsa.

It' the pier deck 19C (Fig. 16) is made of concrete it may be providedwith cut-out recesses S2 in its top face and bolt holes S3 from themid-part of the recesses passing down through the deck; and receivingplates 84 on the bottom of said recesses have countersunk holesreceiving pending rods or bolts 37C in said holes 83 and having heads 85disposed flush in the countersinks and covered by a concrete lling 86 inthe recess flush with the top of the deck and covering said heads andplates.

Where wooden decks are used a part of the planking could be cut away oromitted and have a concrete portion substituted, the concrete wall beingbuilt up to said portion.

If desired, the plate 78 could be omitted and an eye formed on the tiebolt '77 and disposed on one of the bolts 37a for anchoring the tiebolt.

In general any of the features of any of the species herein may be usedwith the features of the other species if suitable and desired.

This application is a continuation in part of my abandoned applicationSerial No. 9,536, led February 19, 1948.

The invention claimed is:

l. In combination, with a pier deck, pending ilexible connectorsconnected at intervals to the pier deck and hanging under the pier deck;a wall of hardened plastic material secured to said connectors close tosaid pier deck, and having its lower part disposed a short distancebelow the water line.

2. In combination, with a pier deck having spaced stringers, alongitudinally slidable beam disposed transverse to the pier deck on thestringers; a vertical wall of hardened plastic material suspended fromsaid beam.

3. In combination, with a pier deck subject to shocks and jars, pendingcables beneath the pier deck secured at intervals thereto; a beamsecured to the lower ends of the cables below the later line; a masonrywall enclosing said cables and rising from said lower beam substantiallyto the deck.

4. In combination with a pier deck having spaced stringers,longitudinally slidable alined upper beams disposed transverse to thepier deck on the stringers; pending eye bolts secured at intervals tothe upper beam and having lower eyes; pending cables secured to saideyes; a lower beam secured to the lower ends of the cables; and a wallof hardened plastic material rising vertically Y from said lower beamand enclosing said cable and rising substantially to said stringers.

5. Fire retarding means for a pier deck having spaced stringerssupporting the pier deck; said means comprising a longitudinallyslidable upwardly open alined upper channel beam adapted to be disposedsubstantially across the pier deck on the stringers and havinglongitudinal slots in the web and transverse alined openings in theanges at the slots; transverse pins in said openings; eye bolts passingthrough said slots and each having lower eyes, the upper eyes beingreceived on said transverse pins respectively; a pending cable securedto each lower eye; a lower beam secured to the lower ends of the cables;a wall of hardened plastic material rising vertically from said lowerbeam and enclosing said cables and rising substantially to said channelbeam and provided with upper vertical openings enclosing the lower partof the bolts.

6. In combination with a pier deck having spaced stringers,longitudinally slidable alined upper beams disposed transverse to thepier on the stringers; and a plurality of alined vertical wall sectionsof hardened plastic material suspended from said beams and having loosetongue and groove connection with each other.

7. In combination with a pier, a re wall comprising a plurality ofalined vertical wall sections of hardened plastic material exiblyswingingly suspended beneath said pier and extending below the water;adjacent edges of the sections having secured thereto verticalcooperating tongueend-groove edge piece having inner under cut groovesin which said material is cast, the edge pieces forming `a reproofflexible joint.

8. In combination with a pier on piles, a swinging wall beneath the piersecured to the pier and having an opening therethrough near a pile;escutcheons in the face of the wall around the opening; an eye boltpassing loosely through the escutcheon and core openings and having aneye adjacent to the pile and a head at the opposite end; a pair ofstraps at opposite sides of the pile; bolts passing through the ends ofthe straps, one of the bolts passing through the eye for looselyanchoring the wall to the pile.

9. Fire retarding means for a pier deck having spaced stringers, saidmeans comprising an upper beam adapted to be disposed transversely onthe stringers; pending cables secured at intervals to the upper beambetween the stringers; a lower beam secured to the lower ends of thecables; a wall of hardened plastic material on said lower beam andenclosing said cable and` rising sub` stantially to said upper beam andto substantially fill the space between the stringers at the wall toform a lug, said lug having a vertical hole therein in which the cableis disposed.

10. In combination with a pier having spaced stringers, a beam disposedacross the stringers; pending cables se? cured at intervals to the upperbeam between stringers; a lower beam secured to the lower ends of thecables; a wall of hardened plastic material rising vertically from saidlower beam and enclosing said cable and rising substantially to saidstringers and to said beam between the stringers to form lugs, and aparting board across the Wall just under the lugs.

ll. In combination with a pier having spaced stringers supporting thepier deck, an upwardly open upper channel beam disposed across thestringers and having longitudinal slots in the web and transverse alinedopenings in the flanges at the slots; transverse pins in said openings;eye

bolts passing through said slots and having lower eyes,

and upper eyes received on said transverse pins; a pending cable securedto each lower eye; a lower beam secured to the lower ends of the cables;a wall of hardened plastic material on said lower beam and enclosingsaid cables and rising substantially to the stringers and between thestringers and substantially to said upper beam to form large lugsbetween the stringers and having a horizontal parting plate disposedentirely across and along the wall under the space between the stringerssubstantially at the level of the lower face of the stringers; said lugsbeing provided with vertical openings to loosely receive said eye bolts,whereby the wall is adapted to yieldably swing on said eye bolts.

12. A method for erecting a wall beneath a structure r above water, saidmethod comprising suspending from 13. A method for erecting a reresisting wall beneath a pier having spaced stringers, said methodcomprising placling an upper beam across theA pier stringers; suspendingtween the forms to form a lower part of a tire wall section whilemaintaining said cables taut; then simultaneously lowering all parts ofthe beam and wall section; building up the form and repeating thepouring and method until the `wall is below the water line and has beenbuilt up between the stringers and around the cables substantially tothe top level of the stringers; securing the cables to the upper beam;and removing the forms and temporary beam to allow the cables to supportthe wall.

14. A method for erecting a fire resisting wall beneath a pier havingspaced transverse stringers thereon; said method comprising placingacross the stringersrlongitudinally slidable upwardly open alined upperchannel beams having longitudinal slots in the web; transverse alinedopenings in the ilanges above each slot carrying pins carrying eye boltshaving lower eyes; suspending from the channel beam downwardly extendingrods supporting a temporary beam above the water line under the pier;securing upright forms along the edges of the beam; laying on said beamVan upwardly open lower channel beam having cross pins passing through'the anges; passing cables through said lower eyes, drawing the cablestaut and securing them; pouring plastic material lbetween the forms toform a lower part of a iire wallsection while maintaining said cablestaut; simul-V taneously lowering all parts of the beam and wall section;building up the form and repeating the'pouring and meth od until thewall section is below the water line and has been built up substantiallyto the stringers; laying a horizontalparting plate across and along thetop of the wall adjacent to the lower plane of the stringers; placing atubular form around the eye bolt and the cables on'said plate; buildingup the wall between the stringers and around the tubular formsubstantially to said upper beam; securing theV cables to the lower eyeof the eye bolts; removing the upright forms andV temporary beam toallow the cables to support the wall.

15. In combination with a pier having spaced stringers, an upper beamdisposed transverse to the pier on the stringers; pending eye boltssecured at intervals to the upper` beam; long bolts suspended from theeye bolts; a lower beam secured to the lower ends of the long bolts;

Y and awall rising vertically from said lower beam and to Vsaid lowerbeam; pouring plastic material between the forms to form a lower part ofa tire wall section while maintaining said bolts midway between theforms; then simultaneously lowering all parts of the beam and wallsection; building up the form and repeating the pouring and method untilthe wall is below the water line and has been built up between thestringers and around the bolts substantially to the top level or thestringers and securing the bolts to the upper beam; and removing theforms and temporary beam to allow the bolts to support the wall. Y i l17. A re resisting tire wall or curtain of concrete secured beneath apier comprising spaced stringers disposed on the pier; transverse planksacross the stringers, upwardly .openV alinedrshallowrupper channel beamsdisposed t Y8 across adjacent stringers and having holes in the web atintervals and having anges'nearly as high as the `top of the planks andlling the space between adjacent planks;

pending rods passing through said holes having nuts on the upper end andengaging the web forrholding the bolts, said bolts having eyes at thelower end; alower beam secured to said eyes; and a wall of hardenedplastic material rising from said beam to said stringers and upper beam.

18. In combination, pending rods adapted to beV secured beneath a deckat intervals; a beam secured tothe lower ends of the rods below thewater line; a concretewall en closing said rods and rising from saidlower beam substantially to near the upper ends of the rods; an uprightendpiece of oak disposed against an edge face of the wall to formaprotective end edge or fender for the wall and having countersunk holestherethrough; and headed studs in said holes and secured in the concretewallto hold the piece to the wall and having heads in said countersink.19. Fire retarding means for a pier comprising transverse pylons and adeck thereon; said means comprising a concrete re wall suspended fromthe deck adjacent a traveling slide plates having central openingsreceived fast onsaid bolt and slidable on said bar member.

20. In combination, a re resisting concrete wall suspended adjacent totransverse pylons beneath a pier deck; a horizontal channel iron `havinga vertical web disposed with its web against adjacent piles of the samepylori, the

web having a horizontal slot in its mid-part; U-straps disposed aroundsaid adjacent piles and bolted to the web; n

a non-traveling slideplate welded fast on the flanges of said channeliron and having a horizontal slot registering with the slot of thechannel iron; a bolt transverse slidably disposed in said slots andhaving one end cast mid-way between the faces of the wall; travelingslide plates having central openings received. on said bolt, the platesbeing' welded to the bolt and slidable on said non-traveling plate andthe channel iron; and an anchor plate cast mid-way in the wall sectionparallel to said faces and secured fast to said end of the bolt.

21. In combination, a pier having a concrete deck having a transverseseries of cut-out recesses in its top faceV and vertical bolt holesextending from the mid-part of the recesses through the deck.; plates insaid recesses having counter holes; pending rods in said holes havingheads flush in the countersinks; Va concrete iilling in the recess vfiush with the top of the deck and covering said heads and plates; abeam secured to the lower ends of the rods below the water line; amasonry wall enclosing said rods and ris- Y ing from said lower beamsubstantially to the deck.

22. In combination, a pier deck; a vertical masonry wall disposedtransversely under said pier and extending upwardly tothe decl: anddownwardly just Vbelow the water level and spaced from the ground; andmeans Vsupporting the wall from'said pier deck only and allowingVlongitudinal movement of the wall transversely of the pier deck whenthe pier deck is jarred laterally, thereby to avoid excessive shockand'excessive disintegration and deterioration of the wall.

23. In combination, a pier comprising a deck; a vertical n suspendedfrom said deck near and spaced from one of the Without touching the walland to allow movement transverse of the pier relative to the lower partof the adjacent pylon; and means for detachably loosely anchoring saidwall to adjacent piles for holding the wall from excessive swinging fromthe pylon and allowing movement of the Wall transversely of the pierrelative to the adjacent pylon, when the pier is j arred laterally,thereby to avoid excessive shock and excessive disintegration anddeterioration ofthe wall.

25. In combination, a pier comprising a deck and transverse pylonssupporting the deck; a vertical Wall of reinforced concrete transverselydisposed under said deck near one of said pylons and loosely connectedto the upper part only to said deck and adapted to move with movementtransversely of the pier relative to the deck and the adjacent pylon;said wall extending upwardly to the deck and downwardly just below thewater level; and means loosely anchoring the lower part of said wallonly to adjacent piles for holding the wall from excessive swinging fromthe pylon and allowing movement of the wall transversely of pierrelative to the pylon, when the pier is jarred laterally, thereby toavoid excessive shock and excessive disintegration and deterioration ofthe wall.

26. A method for erecting a wall beneath a pier deck above water, saidmethod comprising supporting a horizontal beam above the water line;securing rods to said beam and the deck; building the lower part of awall on said beam around the rods; lowering the beam and wall part;repeating the method until the lower part of the wall is below the waterline spaced from the ground and has been built up to the deck; andsuspending the wall from the deck by means of said rods.

27. A method for erecting a re resisting wall beneath the deck of apier, said method comprising disposing beneath the deck a horizontalbeam above the water line under the pier; passing rods through said deckand securing them to said lower beam; securing spaced parallel uprightforms along the beams; pouring plastic material between tthe formsaround the rods to form a lower part of a re wall section; thensimultaneously lowering said forms, beam and wall section; building upthe forms and repeating the pouring and method until the wall section isbelow the water line and has been built up substantially to the deck;securing the rods to the deck; and removing the forms and nallytemporary beam to allow the rods to support the Wall.

28. A method for erecting a. lire resisting Wall beneath the deck of apier having transverse pylons; said method comprising placing across thepier structure longitudinally slidable upper beams; suspending from thebeam pairs of downwardly extending rods disposed near a pylon andtemporary structure above the water line under the pier; laying ahorizontal lower beam on said structure; securing spaced parallelupright forms along the beam; securing rods to said lower beam andpassing the rods through said upper beam; pouring plastic materialbetween the forms to form a lower part of a lire wall section; thensimultaneously lowering all parts of the beam and wall section; buildingup the form and repeating the pouring and method until the Wall sectionis below the water line and has been built up substantially to the deck;securing rods to the upper beam; removing said forms, structure andbolts to allow the rods to support the wall; and loosely anchoring thewall to adjacent piles.

29. In combination, a pier comprising a deck and transverse bents ofpiles supporting the deck; a vertical masonry wall suspended from saiddeck transversely of the deck near one of said bents entirely out ofcontact with the piles and movable transversely of the pier relative tothe adjacent bent if the deck is jarred transversely; said wall beingspaced from the adjacent piles thereby allowing movement of the walltransversely of the pier relative to the piles when the pier is jarredlaterally, thereby to avoid excessive shock and excessive disintegrationand deterioration of the wall, and allowing repair, replacement andposting of said adjacent piles without interference with and by theWall.

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